BIG plans are afoot all along the Brooklyn waterfront, but none are quite so ambitious as the current proposals to rezone nearly 200 decaying blocks along the East River in Williamsburg and Greenpoint.

The city has a plan that envisions low- and high-rise apartment buildings strung along a new park that the city visionaries compare to Manhattan’s Hudson River Park and the Toronto waterfront.

The plan, which would also create some 8,000 new housing units, went into a community board review process in October.

That stage of review, which includes the Borough President and the City Council, is expected to last until May. (As area City Council Member David Yassky puts it, “This is our one chance to shape this waterfront forever.”) Already, some current residents have stated they’re unhappy with the city’s plans.

One concern of Yassky and community groups like the Greenpoint Waterfront Association for Parks & Plans is that the city’s plan is adding housing units without providing enough new green space.

“We’re talking about adding a huge amount of new residents to the area,” Yassky points out.

Also at issue are zoning changes that would allow, in some places, riverfront towers up to 350 feet tall. In neighborhoods composed mainly of short three- and four-story buildings, a 35-story waterfront condo might look a bit out of place.

Above all, though, residents are concerned that the proposed new residential development won’t include a substantial amount of affordable housing.

Yassky suggests that new residential developments should aim at having 40 percent of units set aside for middle-income occupants. He believes such a stipulation has to be written into the zoning plan itself.

North Brooklyn’s hunger for affordable housing is evident at a development rising just south of the Williamsburg Bridge . Billed as the neighborhood’s first waterfront luxury complex, Schaefer Landing has set aside 139 units of affordable rental housing, ranging from one-bedrooms renting for $661 per month to four-bedrooms going for $1,030.

Slots in the building are to be awarded in a lottery this spring, and while the final tally won’t be known until after all applications are in Feb. 15, the building expects between 10,000 and 20,000 people to apply for the 139 middle-income units.